Pressure-valve for compressors.



Patented Nov..l9, l90l. I E. JOSSE. PRESSURE VALVE FOR GOMPRESSORS.

(Application filed Nov. 26, 1900.)

(No Model.)

" NrrEn STATES PATENT OFFICE.

PRESSURE-VALVE FOR COM PRESSORS.

SPECIFICATION forming part Of Letters Patent N0. 686,736, dated November19, 1901. Application filed November 26, 1900. Serial No. 37,774. (Nomodel.)

To all whom, it may concern:

Be it known that I, EMIL JOSSE, a subject of the German Emperor,residing at Wilm ersdorf, Germany, have invented certain new and usefulImprovements in Pressure-Valves for Compressors, of which the followingis a specification.

The object of my invention is to provide a simple and efficientpressure-valve for compressors, and especially sulturous-acid 'andammonia compressors.

To this end my invention consists in the novel arrangement andcombination of parts to be hereinafter described and claimed.

In the accompanying drawings, wherein like reference-letters indicatecorresponding parts in the various views, Figure 1 is a top view of oneform of pressure-valve embodying my invention. Fig. 2 is a centrallongitudinal sectional view of the same with parts in elevation. Fig. 3is a central longitudinal sectional view of another form ofpressurevalve, and Fig. 4 is a like view of a further modification ofvalve embodying my invention.

Referring first to Figs. 1 and 2, it will be seen that the valve propercomprises a plate b, having a central opening and an outwardly-directedflange or collar 0. A leafspring (1 is employed to maintain the valveupon its seat and to guide it in its movement. This leaf'springcomprises a plurality of separate arms, a free end of each of whichprojects beneath the collar 0 on the valve proper, as represented inFig. 2. This leaf-spring is supported upon a screw-threaded spindle eand may be adjusted thereon by means of the nuts 9:, so as to vary thetension of the spring upon the valve. This spindle e is supported inplace, as indicated at y, and projects through the central opening inthe valve proper. Adj ustably supported upon the spindle e is a casingor cap f, which is slitted for the reception of the arms of theleaf-spring d. This cap or casing f constitutes a protee-ting means andguide for the spring and valve and at the same time limits the upwardmovement of the valve 1). The valve proper, b, cooperates with anannular valve-seat a, which may be secured to the cylinder-head or otherconvenient place, and a suitable circular channel or passage extendsthrough said seat.

In the construction shown in Fig. 3 the centrally-apertured plate I) ofthe valve is provided with an upwardly-ex tending cylindrical flange g,with which a spiral spring h cooperates. A cap 2' is adjustably securedto a screw-threaded spindle c. This cap constitutes an abutment for theupper end of the spring h and a protecting means therefor and at thesame time serves as a guide for the valve 1) and likewise limits theupward movement thereof. Thus it will be seen that the lower portion ofthe cap surrounds the flange 9 on the valve and cooperates therewith toguide the valve in its movement, whereas the lower edge of the capconstitutes an abutment to limit the upward movement of the valve.

In Fig. 4 a somewhat similar arrangement to that disclosed in Fig. 3 isshown. In Fig. 4, however, the flange g is contained within the coiledspring 2' instead of being located outside of it, as in Fig.Furthermore, in the construction shown in Fig. 4 the cap 1 does notproject as far toward the valve b as does the cap shown in Fig. 3.

It will be observed that in all of the constructions shown the caps orcasings f, i, and r1 constitute means for protecting and guiding thesprings and valves in the movement of the valves and that in eachinstance the tension of the spring and limit of movement of the valvemay be regulated by the adjusting means. It will likewise be observedthat the spring itself in each instance tends to guide the valve in itsmovement.

Having described my invention, what I claim, and desire to secure byLetters Patent, 1s-

1. The combination of an annular valveseat, a valve proper cooperatingtherewith, said valve proper comprising a plate having a collar thereonand a spring engaging said collar to guide the valve proper in itsmovement and to normally maintain the valve on its seat.

2. The combination of an annular valveseat, a valve proper cooperatingtherewith, said valve proper comprising a plate having a collar thereonand a leaf-spring having a plurality of arms which are adapted to engagesaid collar and guide the valve in its movement.

3. The combination of an annular valveseat, a valve proper cooperatingtherewith, said valve proper having a collar thereon, a spring whichcooperates with said collar and tends to guide the valve in itsmovement, a cap for said spring and means for adjusting the cap in orderto regulate thelimit of movement of the valve. 7

4. The combination of an annular valveseat, a valve proper cooperatingtherewith, said valve proper having a collar thereon, a leaf-springhaving a plurality of arms which cooperate with said collar and tend toguide the Valve in its movement, a slitted cap for guiding the arms ofsaid leaf-spring and valve.

EMIL J OSSE. Witnesses:

HENRY HASPER, WOLDEMAR HAUPT.

